Epilepsy - Generalised tonic-clonic seizures (Pediatrics - PEDS)

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It is a type of seizure caused by a generalized irritation of the brain, accompanied by loss of consciousness. 

Sometimes the cause is unknown, but it has been associated in many cases with trauma, infections, neoplasms, genetic alterations and toxins that irritate the brain tissue. 

Tonic-clonic seizures go through three phases: the first in which the patient's muscles become rigid, the second in which he loses consciousness and begins to make generalized and repetitive movements and the third in which the patient wakes up and becomes prostrate, with slow thinking and amnesia of what has happened. 

The diagnosis is made by clinical history, complete physical examination and an electroencephalogram.  Complementary imaging tests may be performed to complete the study. 

Treatment is based on correcting the triggering cause and antiepileptic drugs, which also help to avoid new episodes. Sometimes childhood epilepsies disappear when puberty is reached. 

Bibliographic references
  1. Christian M Korff, MD, Elaine Wirrell, MD. ILAE classification of seizures and epilepsy. UpToDate. Oct 20, 2015.
  2. Angus Wilfong, MD. Seizures and epilepsy in children: Classification, etiology, and clinical features. UpToDate. Sep 30, 2016.
  3. Angus Wilfong, MD. Clinical features and complications of status epilepticus in children. UpToDate. Nov 16, 2015.
  4. Fountain NB, Van Ness PC, Swain-Eng R, et al. Quality improvement in neurology: AAN epilepsy quality measures: Report of the Quality Measurement and Reporting Subcommittee of the American Academy of Neurology. Neurology 2011; 76:94.
  5. Glauser T, Ben-Menachem E, Bourgeois B, et al. Updated ILAE evidence review of antiepileptic drug efficacy and effectiveness as initial monotherapy for epileptic seizures and syndromes. Epilepsia 2013; 54:551.
  6. Lowestein DH. Convulsiones y epilepsia.Harrison. Manual de Medicina. 16º edición. 929-937.
Author
Dr. Sara Vitoria
Copyright
© TeckelMedical 2026

Symptoms

    Seizures


    Muscle stiffness due to a contraction


    Confusion after seizure


    Convulsions in a limb


    Involuntary sucking movements

Pre-hospital care recommendations

During the seizure, move all objects that could injure the person.
Try to place a pillow under the head.
Do not insert objects or fingers in the person's mouth.
Turn the person onto their side during the seizures.